Question

A 8 kg cat is running 4 m/s. How much kinetic energy does it
have?

Answer 1

Kinetic energy K = 1/2 m v^2.

K = 0.5 × 8 kg × (4 m/s)^2 = 0.5 × 8 × 16 = 64 J.

So the cat has 64 joules of kinetic energy.